What are foreigners first impression of China? high tower crane and full of tall buildings. They said china looks like a huge construction site, it is not exaggerated. An official from ministry of housing and urban-rural said, annual chinese new construction aera was up 2 billion SQ.M. Chinese construction site consumed 40% cement and steel of all over the world.
Some people did not notice that, billions of construction waste were produced every year, it accounts for 30%-40% municipal refuse. According to the new planning of ministry of housing and urban-rural, until 2020, chinese new construction aera will be up 30 billion SQ.M. and construction waste will be up 5 billion tons.
Chinese cities which are in household refuse trouble can not suffer any more. Now lots of construction waste without any pre-treatment were sent to suburb or rural area. Air storage or landfill not only occupied lots of land, but also seriously polluted environment. Landfill construction waste polluted underground water and directly have an bad influence on people living around here.
How to solve the problem of construction waste? Accord to the experience of countries of the world, the first resolution is decrease. There are lots of poor quality buildings and some image constructions or vanity projects need to be teared down. Average using time of chinese building is just 30 years, it is far below UK 132 years and US 74 years. So if we want to solve the problem of construction waste, we need impove the quality of bulidings and expand buildings service life. Put an end to tear down bulidings, strength long term and authority of urban planning., forbid inconstant in policy.
The second resolution is making waste profitable. According to expert said, there are more than 95% construction waste can be recycled. For excample, compared solid clay bricks, 0.15 billion stardard recycle bricks which raw materials are constrcution waste and produced by aac block machine or aac machinery can save 240,000 SQ.M. cultivated land and comsume more than 400,000 tons comstruction waste. Otherwise,,during the producing, 0.15 billion stardard recycle bricks consume 40,000 tons fly ash and save 15,000 ton stardard coal.
Reuse construction waste not only has huge environmental benefits, but also has huge economic benefits. Until 2020, if new construction waste is 5 billions tons, turn those construction waste into ecological construction materials, the value of those ecological construction materials will be up 0.1 billion Yuan. However, there is a little companies which reuse construction waste to producte environment protection bricks. Dongyue machinery group is one of them. Dongyue Group produces advanced technology automatic block machine and egg laying block machine, at the same time , dongyue produced bricks which raw materials is construction waste.
Donyue Machinery Co., Ltd.
Yinan County, Linyi City, Shandong Province